1N5377C/TR12

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Voltage - Zener (Nom) (Vz):	91V
Tolerance:	±2%
Power - Max:	5W
Impedance (Max) (Zzt):	75 Ohms
Current - Reverse Leakage @ Vr:	500nA @ 65.5V
Voltage - Forward (Vf) (Max) @ If:	1.2V @ 1A
Operating Temperature:	-65°C ~ 150°C
Mounting Type:	Through Hole
Package / Case:	T-18, Axial
Supplier Device Package:	T-18
Base Part Number:	1N5377

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The 1N5377C/TR12 is a single zener diode commonly used in the semiconductor industry. It is a three-terminal device consisting of a junction of p-type and n-type materials that form a reverse-biased p-n junction. When a current is applied to the third terminal, the junction behaves like a Zener diode and allows a current to flow in the reverse direction. This current flow is known as the Zener effect and occurs when two semiconductor junctions are held at a reverse bias voltage; when the voltage is increased, current increases and eventually decreases to a steady state. The 1N5377C/TR12 is used in a variety of electronic circuits, including voltage regulators, rectifiers, and power supplies. The 1N5377C/TR12 is an ideal component for switch mode power supplies, in which it acts as a voltage reference. It is also used in voltage-sensitive circuits, such as electronic timing circuits and motor speed controls. Additionally, the device can be used as a voltage-dividing element in voltage-sensitive circuits, as a protection device in circuits with high surge voltages, and in current limiting circuits. In terms of its design and working principle, the 1N5377C/TR12 consists of a silicon PN junction diode with an internal structure. It has two terminals, the anode and the cathode, that are separated by a thin layer of semiconductor material, usually silicon. In a three-terminal device, power is amplified by the PN junction, while the third terminal acts as the gate. The voltage applied to this gate determines the current through the diode, which is typically in the region between 0.2 V and 0.7 V. An externally applied reverse bias sends majority carriers in the reverse direction and generates an electric field that opposes the current flow. This has the effect of creating a controlled rectifying junction. In this manner, the Zener effect is achieved. The reverse voltage applied to the PN junction causes the diode to break down, resulting in current flow in the reverse direction. As the applied voltage increases further, the current will increase until the diode reaches its rated breakdown voltage, where it will remain constant. This breakdown voltage is referred to as the Zener voltage. In conclusion, the 1N5377C/TR12 is a three-terminal device consisting of a p-type and n-type junction, used in the semiconductor industry for a variety of applications. It works on the principle of the Zener effect, in which a reverse bias applied to a PN junction causes a current to flow in the reverse direction. This reverse current is affected by the applied voltage, with its voltage rise limited by the Zener voltage. The 1N5377C/TR12 is commonly used in voltage regulators, rectifiers, power supplies, and other electronic components that require precise voltage regulation.

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